Drill bit



FIG. 1 is a perspective view of a first embodiment of a drill bit.

FIG. 2 is a front view of the first embodiment of the drill bit.

FIG. 3 is a back view of the first embodiment of the drill bit.

FIG. 4 is a left view of the first embodiment of the drill bit.

FIG. 5 is a right view of the first embodiment of the drill bit.

FIG. 6 is a top view of the first embodiment of the drill bit.

FIG. 7 is a bottom view of the first embodiment of the drill bit.

FIG. 8 is a perspective view of a second embodiment of a drill bit.

FIG. 9 is a front view of the second embodiment of the drill bit.

FIG. 10 is a back view of the second embodiment of the drill bit.

FIG. 11 is a left view of the second embodiment of the drill bit.

FIG. 12 is a right view of the second embodiment of the drill bit.

FIG. 13 is a top view of the second embodiment of the drill bit.

FIG. 14 is a bottom view of the second embodiment of the drill bit.

FIG. 15 is a perspective view of a third embodiment of a drill bit.

FIG. 16 is a front view of the third embodiment of the drill bit.

FIG. 17 is a back view of the third embodiment of the drill bit.

FIG. 18 is a left view of the third embodiment of the drill bit.

FIG. 19 is a right view of the third embodiment of the drill bit.

FIG. 20 is a top view of the third embodiment of the drill bit.

FIG. 21 is a bottom view of the third embodiment of the drill bit.

FIG. 22 is a perspective view of a fourth embodiment of a drill bit.

FIG. 23 is a front view of the fourth embodiment of the drill bit.

FIG. 24 is a back view of the fourth embodiment of the drill bit.

FIG. 25 is a left view of the fourth embodiment of the drill bit.

FIG. 26 is a right view of the fourth embodiment of the drill bit.

FIG. 27 is a top view of the fourth embodiment of the drill bit; and,

FIG. 28 is a bottom view of the fourth embodiment of the drill bit.

The stippling and line shading show a contrast in appearance.

CLAIM The ornamental design for a drill bit, as shown and described.